Recent Submissions

As an extension of the conventional Fourier transform and as a time-frequency signal analysis tool, the fractional
Fourier transforms (FRFT) are suitable for dealing with various types of non-stationary signals. Taking ...

This final technical report describes the conclusion of effort on the New World Vistas grant entitled "New Approaches to High Power Microwave Computation and Experimentation.' In the final year of effort we focused on ...

In this technical report we outline a control framework for a utility-maintained central power plant in a future smart-grid integrated with renewable distributed generators at customer premises having independent time-dependent ...

Policy leaders have identified a need for a mathematical based computational system that would support requirements of situational awareness to analyze terrorist threats and risks given the vast amount of input data in the ...

The need for shared understanding in the analysis of terrorist activity has been a clearly defined national priority for over a decade. We present a foundation for an ontology to represent adversary groups and their ...

Monte Carlo (MC) rendering systems can produce spectacular images but are plagued with noise at low sampling rates. In a recent paper, we observed that this noise occurs in regions of the image
where the sample values are ...

Fourier analysis techniques remain the staple tools for
the processing of sinusoidal signals with stationary frequency
content. These techniques however, are unsuitable for the analysis
of signals with time-varying ...

We propose a flexible and
computationally efficient
method to solve the non-homogeneous Poisson (NHP) model
for grayscale and color images within the TV framework.
The NHP model is relevant to image restoration in ...

We present a theoretical framework for faceted ontologies equipped with data repositiories. The ontology structures, inferencing within ontologies, and repository use and updating are expressed using mathematical structures ...

In current literature, the definition of a cognitive radio (CR) seems to be different from one research community
to another: For communication theorists it is about dynamic spectrum sharing (DSS), for hardware/RF ...

This technical report accompanies the tracking filter based on geometric properties of targets' maneuvers developed in our submission for the Journal of Autonomous Robots. Herein, we compare estimation quality, processing ...

We present a set of technical procedures to carry out experiments involving mobile robots. The hardware and
software configuration to access the sensors and actuators in the robots usually turn out to be a relatively ...

Modeling human behavior in computer simulations and games is a subject which draws considerable attention. Despite the increased realism of graphics in games, poor modeling of non-player characters’ AI often leads to a ...

A category-theoretic account of neural network semantics has been used to characterize incremental concept
representation in neural memory. It involves a category of concepts and concept morphisms together with
categories ...

The routing problem in Wireless Mesh Networks (WMNs) is concerned with finding “good” source destination paths. It generally faces multiple objectives to be optimized, such as i) path capacity, which accounts for the bits ...

Categorization and the judgement of similarity are fundamental in cognition. We propose that these and other activities are based upon an underlying structure of knowledge, or concept representation, in the brain. Further, ...

Over the past decade, research on network architecture design has intensified. However, contributions to the field have mainly been idiosyncratic and architectural descriptions remain idiomatic. This state of affairs has ...